Which gas do plants absorb from the atmosphere?

Which gas do plants absorb from the atmosphere?

• A. Ozone
• B. Carbon monoxide
• C. Hydrogen
• D. Carbon dioxide

Answer: (D)

Plants primarily absorb carbon dioxide from the atmosphere as part of the process of photosynthesis. During photosynthesis, plants take in carbon dioxide through small openings in their leaves called stomata. They use sunlight to convert carbon dioxide and water into glucose and oxygen. This process not only provides energy for the plants but also plays a crucial role in the carbon cycle and influences the overall concentration of carbon dioxide in the atmosphere. The other gases listed do not serve this primary role in plant respiration and growth. Ozone, while a form of oxygen, is not utilized by plants for photosynthesis. Hydrogen, typically found in water, is part of the chemical reaction in photosynthesis but not absorbed directly from the atmosphere. Carbon monoxide is more of a pollutant than a substance that plants would utilize. Therefore, carbon dioxide is the essential gas that plants absorb to carry out photosynthesis effectively.

Plants primarily absorb carbon dioxide from the atmosphere as part of the process of photosynthesis. During photosynthesis, plants take in carbon dioxide through small openings in their leaves called stomata. They use sunlight to convert carbon dioxide and water into glucose and oxygen. This process not only provides energy for the plants but also plays a crucial role in the carbon cycle and influences the overall concentration of carbon dioxide in the atmosphere.

The other gases listed do not serve this primary role in plant respiration and growth. Ozone, while a form of oxygen, is not utilized by plants for photosynthesis. Hydrogen, typically found in water, is part of the chemical reaction in photosynthesis but not absorbed directly from the atmosphere. Carbon monoxide is more of a pollutant than a substance that plants would utilize. Therefore, carbon dioxide is the essential gas that plants absorb to carry out photosynthesis effectively.